Modeling temperature through the day | Graphs of trig functions | Trigonometry | Khan Academy

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[WizzRacing]

Glad to see even teachers struggle with how to express the question.

[chaynhungkhongkhet]

Wow i love sal khan .I love the way you teach me

[JellybellyWaffles]

How does this channel have 1.6 million subscribers and only have a few thousand views on each video?

[briannestewart]

Dude. You made a mistake. I think you thought the 10.5 meant that t=0 also is t=10am. I can see 10am is supposed to be the high. Which occurs at 6 hours using F(t). So the phase shift would be t-4 because it needs to shift to the right by 4 hours for it to be at 10 hours. ❤

[realthefew]

0-12 isn't the afternoon. If it's 10am at zero, it must be 12pm at 12, meaning it should go up at 12-24 rather than 0-12

[werewolfQ]

didn't you shift in the wrong direction
it should be -14 or +10

[TheBazaarBetweenRealms]

why does this guy need a youtube channel he has his own site?!

[leizlarcega]

i thought in the vertical part is the temperature, seems like the 10.5 represents the time

[mountcarmel]

you need to get your self prepared very well before you come to demonstrate. you did not make even why at 10 am F=0.

[pooplauncher]

what program do you use to do all the drawing